Ending today, HandHeldItems takes an extra 20% off iPhone 4 and 4S cases via coupon code "20iphonecs". Even better, all cases come bundled with a $1 HHI Credit. With prices starting at $1.59 after coupon, that's tied with last week's mention and among the best discounts we've seen on these items from HandHeldItems in recent weeks. Shipping starts at $2.85, although many items receive free shipping. Coupon expires August 15.

A best bet is is this Cassette Tape Silicone Case for Apple iPhone 4 / 4S in five colors (Blue/White pictured) bundled with a $1 HandHeldItems credit for $3.18 before the above coupon, $2.54 after. With free shipping, that's the lowest total price we could find by $3.